FCC ID: 2AVYG-NOTE20 ULTRA THIN TWS EARPHONE

Product diagram Headset display Wear Functional operation Power shortage alert Matters needing attention Note 20 ULTRA THIN TWS EARPHONE USER MANUAL Thank you for choosing Note 20 ultra thin TWS Dear users, earphone!

In order to better use this product.Please read users manual carefully in advance to ensure proper operation. Power indicator Earphone storage Window to push earbuds out Charging interface Operating area Indicator light On/off Power on Method 1 Take out the earbuds from the charging box, the earbuds will boot automatically. Method 2 In the off state,press and hold the touch area of the earbuds in 4 seconds,the earbuds will turn on, and you can hear the prompt power on. Power off Method 1 Put the earbuds into the charging box, and the earbuds will shut down automatically. Method 2 In the power on state,press and hold the operating area in 4 seconds to power off. Ear caps Microphone hole L R Tips Everyone's ear shape and sensitivity will vary. If you still do nt get the best wearing experience by referring to the above instructions, you can rotate the ear caps as shown in the figure and wear them, and you may be surprised. Call Answer the phone Tap once any of the earbuds. Hang up the phone Tap twice on any of the earbuds. Phone rejection Listen to the music Long press any of the left or right earbuds about 2 seconds. 1. Use your finger to reach the window of the earbuds charging box and take the earphone with the other hand. 2. Please select the right and left earphones correctly. The earphones are marked with L ( left ) / R ( right ). L R Pairing 1.Turn on the phone Bluetooth, search for the device pause playback, tap again to resume playback. NOTE 20 in the discovered device, and click Connect. The voice prompt Connected. Previous Tap the left earbuds twice. 2.In paring mode, when restart earphone after switch off, Next it will connect the phone automatically. Tap the right earbuds twice. Play / Pause When music playing, tap once any of the left or right earbuds to To put the earbuds into charging box, which indicator is blinking to display that earbuds is being recharged. Hold the earphone handle and put it into your ears, and rotate it to Note adjust it to the most comfortable wearing condition. Note: The earphones are equipped with three pairs of ear caps of different sizes. Please choose a comfortable ear cap according to the characteristics of the ear. When using a single ear, take one earbuds out from the charging box, or make sure that the other earbuds is turned off, and then do the above. Wake up voice assistant Long press any of left or right earbuds about 3 seconds In the off state, press and hold the touch for 11 seconds. After hearing the sound ofdididi put it into the charging case, and when you take it out again, the two earphones will be paired Reset again. Charge Earbuds Charging box the charging case. to be charged. Charging Earbuds Charging box the charging case. operation Prompt tone indicator of the charging case lights up, and it turns off after hear your conversation or music. Earbuds 1. Listening to earphone at high volumes can damage your Put the earphones into the charging case, the charging hearing. Use only the minimum volume setting necessary to about 2 seconds. The earphone light is on, indicating that 2. Please keep the earphone, charging box and charger out the earphones are being charged. of the reach of children. Children only use device with the Call Hang up the phone Charging box Phone denied Long press for 3 seconds When you put the earphone into the charging case, the indi try to avoiddoing as swimming, snorkelling, diving . involvement of a parent or guardian. 3. Do not submerge the device in water for long time, and cator of the charging case will light up. When only one indicator 4. Do not use this product in humid, dusty or near-magnetic light is on, it means that the battery is low. When no indicator is fields in order to avoid electric malfunctions. on, it means that the charging case has no electricity and needs 5. Avoid expose the earbuds to minus 15C or above 50C. Operation function description Remove from charging case / press for 4 seconds Power on Put in the charging case / press for 4 seconds Power off Incoming call Function Power on Power off Answer the call Play Pause Next Previous Wake up/exit Power Music Voice assistant Touch once Touch twice Touch once Touch once

Touch twice right earbud Touch twice left earbud Long press in 3 seconds DI Reset Press and hold for 11 seconds in the off state DIDIDI 6. Avoid charging earbuds or charging box in the sub-zero . 7. Do not keep earbuds in areas with direct sunlight, such as windowsills and dashboards. 8. Do not take apart, modify and insert foreign objects Working frequency band 2.4~2.48GHz Use the type-c charging cable included in the package to charge Model BT version Working time Transmission distance The headset battery Charge box capacity Cumulative endurance Note 20 5.0 4h 10m 45mAh*2 450mAh 20h YOBYBO Technology Inc www.yobybo.com Use the type-c charging cable included in the package to charge To put the earbuds into charging box, which indicator is blinking into the device, as it may result in equipment damage. Main parameter to display that earbuds is being recharged. FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AVYG-NOTE20 Label and Location FCC ID: 2AVYG-NOTE20 Size: L1.0cm*W1.0cm Label Location This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 1

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046

<2020-04-27>

TO WHOM IT MAY CONCERN Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products:

FCC ID 2AVYG-NOTE20 note 20 For the product stated above, we request that the following information be held confidential;

Model name Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos Users Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely,

(Signed) Name / Title: Keyu Guo / Manager Company: Yibai Science & Technology (Shenzhen) Co., Ltd. Contact information / address : CR08, 3F, Ailian UCOMMUNE, Longgang, Shenzhen, China Tel: 13502890859 Fax: /

E-Mail: gky@yobybo.com

Yibai Science & Technology (Shenzhen) Co., Ltd. CR08, 3F, Ailian UCOMMUNE, Longgang, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern:

4/28/2020 We, Yibai Science & Technology (Shenzhen) Co., Ltd. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AVYG-NOTE20 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely,

(Signed) Name / Title: Keyu Guo / Manager Company: Yibai Science & Technology (Shenzhen) Co., Ltd. Contact information / address : CR08, 3F, Ailian UCOMMUNE, Longgang, Shenzhen, China Tel: 13502890859 Fax: /

E-Mail: gky@yobybo.com